Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
?
EE Times-Asia > Optoelectronics/Displays
?
?
Optoelectronics/Displays??

WDM prototype offers capacity up to 40Tb/s/fibre

Posted: 25 Mar 2013 ?? ?Print Version ?Bookmark and Share

Keywords:WDM prototype? wavelength division multiplexing? eOFDM? QAM? HMLC?

Huawei unleashed a 40T wavelength division multiplexing (WDM) prototype that supports simultaneous 2Tb/s transmission of 20 C-band optical channels, offering capacity of up to 40Tb/s per fibre. The prototype is built on three innovations in the field of high-speed transmission, indicated the company.

The combined use of electrical orthogonal frequency division multiplexing (eOFDM) and frequency-domain hybrid quadrature amplitude modulation (QAM) technologies substantially improve spectrum efficiency to 10bit/s/Hz. Additionally, the combined use of flex-optical digital signal processing (Flex ODSP) and hybrid soft-/hard-decision multi-level coding (HMLC) technologies extend the transmission distance to beyond 1,000km over common single-mode fibre and erbium-doped fibre amplifiers (EDFAs), noted Huawei.

Furthermore, software-implemented transceiver technology allows optical modulation formats such as quadrature phase-shift keying (QPSK), 16QAM, 32QAM and 64QAM to be adjusted or combined, achieving a configurable transmission rate and distance for each service. As a result, dynamic service needs in varied scenarios can be easily met.

The 40T WDM prototype claims to be a major breakthrough in high-speed transmission proving current commercial optical networks will be ready for the upcoming flood of digital traffic, Huawei added.





Article Comments - WDM prototype offers capacity up to ...
Comments:??
*? You can enter [0] more charecters.
*Verify code:
?
?
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

?
?
Back to Top